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* [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk
@ 2021-10-09  7:11 Gang Li
  2021-10-10 21:45 ` Steven Rostedt
  2021-10-11  7:54 ` Vlastimil Babka
  0 siblings, 2 replies; 3+ messages in thread
From: Gang Li @ 2021-10-09  7:11 UTC (permalink / raw)
  To: rostedt
  Cc: mingo, akpm, vbabka, axelrasmussen, linux-kernel, linux-mm, Gang Li

Ftrace core will add "\n" automatically on print. "\n" in TP_printk
will create blank line, so remove it.

Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
---
 include/trace/events/mmap_lock.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
index 0abff67b96f0..5f980c92e3e9 100644
--- a/include/trace/events/mmap_lock.h
+++ b/include/trace/events/mmap_lock.h
@@ -32,7 +32,7 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s\n",
+		"mm=%p memcg_path=%s write=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false"
@@ -63,7 +63,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s success=%s\n",
+		"mm=%p memcg_path=%s write=%s success=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false",
@@ -92,7 +92,7 @@ TRACE_EVENT_FN(mmap_lock_released,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s\n",
+		"mm=%p memcg_path=%s write=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false"
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk
  2021-10-09  7:11 [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk Gang Li
@ 2021-10-10 21:45 ` Steven Rostedt
  2021-10-11  7:54 ` Vlastimil Babka
  1 sibling, 0 replies; 3+ messages in thread
From: Steven Rostedt @ 2021-10-10 21:45 UTC (permalink / raw)
  To: Gang Li; +Cc: mingo, akpm, vbabka, axelrasmussen, linux-kernel, linux-mm

On Sat,  9 Oct 2021 15:11:05 +0800
Gang Li <ligang.bdlg@bytedance.com> wrote:

> Ftrace core will add "\n" automatically on print. "\n" in TP_printk
> will create blank line, so remove it.
> 

Yes, thank you!

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

-- Steve

> Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
> ---
>  include/trace/events/mmap_lock.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
> index 0abff67b96f0..5f980c92e3e9 100644
> --- a/include/trace/events/mmap_lock.h
> +++ b/include/trace/events/mmap_lock.h
> @@ -32,7 +32,7 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
> @@ -63,7 +63,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s success=%s\n",
> +		"mm=%p memcg_path=%s write=%s success=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false",
> @@ -92,7 +92,7 @@ TRACE_EVENT_FN(mmap_lock_released,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk
  2021-10-09  7:11 [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk Gang Li
  2021-10-10 21:45 ` Steven Rostedt
@ 2021-10-11  7:54 ` Vlastimil Babka
  1 sibling, 0 replies; 3+ messages in thread
From: Vlastimil Babka @ 2021-10-11  7:54 UTC (permalink / raw)
  To: Gang Li, rostedt; +Cc: mingo, akpm, axelrasmussen, linux-kernel, linux-mm

On 10/9/21 09:11, Gang Li wrote:
> Ftrace core will add "\n" automatically on print. "\n" in TP_printk
> will create blank line, so remove it.
> 
> Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

> ---
>  include/trace/events/mmap_lock.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
> index 0abff67b96f0..5f980c92e3e9 100644
> --- a/include/trace/events/mmap_lock.h
> +++ b/include/trace/events/mmap_lock.h
> @@ -32,7 +32,7 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
> @@ -63,7 +63,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s success=%s\n",
> +		"mm=%p memcg_path=%s write=%s success=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false",
> @@ -92,7 +92,7 @@ TRACE_EVENT_FN(mmap_lock_released,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
> 


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-10-11  7:54 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-09  7:11 [PATCH v2 1/2] mm: mmap_lock: remove redundant "\n" in TP_printk Gang Li
2021-10-10 21:45 ` Steven Rostedt
2021-10-11  7:54 ` Vlastimil Babka

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